Anderson maxwell



No. 6l6,793.- Patented Dec. 27, I898.

A. MAXWELL.

MINING CAR.

(Applicdtion filed oct. 15, 1898.)

(No Model.)

UNITED STATES PATENT GEETCE.

ANDERSON MAXWELL, 0E EAENESVILLE, 01110, ASSIGNOR .TO THE WATT MININGOAR WHEEL COMPANY, on SAME PLAcE.

MINING-CAR.

SPECIFICATION forming part of Letters Patent No. 616,793, dated December27, 1898.

Application filed October 15, 1898. Serial No. 693,651. (No model.)

To aZZ whom it may concern:

Be it known that I, ANDERSON MAXWELL, of 'Barnesville, in the county ofBelmont and State of Ohio, have invented certain new and usefulImprovements in Mining-Oars; and I hereby declare that the following isa full, clear, and exact description thereof, reference being had to theaccompanying drawings, which form part of this specification.

This invention is an improvement in minecars, and has especial referenceto the means for attaching the axle-boxes to the truck or car, wherebythe axle-boxes can be securely fastened and maintained rigidly in properalinement.

The invention is particularly designed for cars wherein round axles areemployed-and journaled in boxes attached directly to the car; and theobject of the invention is to overcome the defects and troubles found inthis class of cars as heretofore constructed. In these forms ofmine-cars great trouble has been heretofore experienced in keeping theboxes from working loose, thereby permitting the axles to get out ofalinement. This difficulty has been increased because of the Warping ofthe lumber of which the bottom of the car is composed and to which theboxes are fastened. WVhere green lumber is used, as it seasons it drawsthe boxes closer together, and thereby disarranges the alinement, andwhere full-seasoned lumber is used the converse trouble is experiencedin damp mines as the lumber becomes moist andexpands or warps, so as tothrow the boxes out of alinement.

My present invention is to prevent the warping of the wood affecting thealinement of the boxes; and the invention consists in the novelconstruction summarized in the claims and described in detail in thefollowing specific-ation, reference being had to the accompanyingdrawings, in which Figure 1 shows a bottom plan of a mine-car with theaxles and axle-boxes in place in accordance with my invention, and Fig.2 is a side view of the bottom of a mine-car with the wheels removed.

The bottom of the mine-car is generally composed of a series oflongitudinal wooden bars A, to which the axle journal-boxes B areordinarily directly bolted.

In my invention I attach to the wooden bottom A, in line with each axle,a U-shaped bar of channel-iron O, with the flanges downward, thischannel-bar being secured in place 5 5 by a series of bolts 0 and beingpreferably arranged transversely to the wooden bars A and so as to holdthe same firmly together.

The boxes B are provided with lateral flanges b, which fit closely inthe channel-bars and by which they can be secured in place Within thechannel-bars and to the bottom A bymeans of through-bolts D, as shown inthe drawings.

For the purpose of further stiffening the truck longitudinally-disposedmetallic bars E may be arranged on the upper side of the floor of thecar and extend from one journal-box to the other at the same side of thecar, the through-bolts D transfixing the bars E also, as shown, so thatwhen the car-bottom is completed it is bonded by longitudinal andtransverse bars E and C.

It will be observed that the channel-bars 0 not only prevent lateraldisplacement of the j ournal-boxes on the car-bottom, but they increasethe bearing-Surface of Said boxes thereon, and they form a rigid bond toprevent the displacement of said boxes in relation to each other in anydirection, and as the said bars C are straight and parallelwith theaxles if either end of the bar, or either box should Work loose theboxes are still kept in line,-so that the axle journaled therein is notsubjected to undue work or strain or twisted by 8 5 one box becomingoblique to the other.

While the invention is very simple, its utility is very great. It meetsa long-felt want and overcomes the objections heretofore consideredinherent in this class of cars.

Having thus described my invention, what I therefore claim as new, anddesire to secure by Letters Patent thereon, is-

1. In a mining-car, the combination of the bars secured to the bottomthereof parallel 5 with the axles, the journal-boxes rigidly secured tothe opposite ends of said bars and kept in alinement thereby, and theaxles journaled in said boxes, substantially as described.

2. In a mining-car, the combination of the inverted channel-bars securedto the bottom thereof, the journal-boxes fitted between the flanges ofthe channel-bar and secured to the opposite ends thereof and kept inalinement thereby, and the axles j ournaled in said boxes, substantiallyas described.

3. In a mine-car, the combination of the parallel transverse barssecured to the bottom thereof, the journal-boxes secured to the ends ofsaid boxes and the axles journaled in said boxes; with thelongitudinally-disposed metal bars eXt-endin g from one axle-box to theother, and the through-bolts uniting said longitudinal bars,tra11sversebars and journal-boxes, substantially as described.

4. In a mine-car, the combination of the parallel transversechannel-bars C secured to

